20553880486 has 8 divisors (see below), whose sum is σ = 30838488840. Its totient is φ = 10274384208.

The previous prime is 20553880469. The next prime is 20553880513. The reversal of 20553880486 is 68408835502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1267951 + ... + 1284058.

It is an arithmetic number, because the mean of its divisors is an integer number (3854811105).

Almost surely, 2^20553880486 is an apocalyptic number.

20553880486 is a deficient number, since it is larger than the sum of its proper divisors (10284608354).

20553880486 is a wasteful number, since it uses less digits than its factorization.

20553880486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556038.

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 20553880486 in words is "twenty billion, five hundred fifty-three million, eight hundred eighty thousand, four hundred eighty-six".